New Zealand Puzzle Association Inc.

Weekly Puzzle Sheet

Every week we place a link to a new two page puzzle sheet on this page. The sheet is a pdf file.
It has four sudoku
and six vaki ® puzzles.
The puzzles are of varying levels of difficulty.

In vaki ® puzzles, each cell in the completed grid contains a letter and a number.
Each letter appears once in each row and once in each column.
Each number appears once in each row and once in each column.
Each pair (A1 is the same pair as 1A) appears once, and only once, in the completed
grid.

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The current puzzle sheet for 2018 can be downloaded
here
Recent puzzle sheets can be downloaded by clicking on the links below

Vaki ® puzzles can also be solved with playing cards.
This link
is to a few vaki ® puzzle card games.

Completed vaki ® puzzles (also known as Euler squares or Greco-Roman squares)
can be converted to semi-magic squares, where every row and every column
adds to the same number. To do this, convert each letter to a number e.g A=0, B=4,
C=8, D=12, and then 'add' the letter and the number in each square (so that
A1 becomes 1, C3 becomes 11, and D4 becomes 16). If the pairs in each cell are replaced
by numbers in this way then each row and each column adds to 34 (1+2+3+4+0+4+8+12).
The semi-magic squares can be converted to magic squares
(if they aren't already magic), where the diagonals
add to the same number (in this case 34) by shuffling rows and columns e.g swapping rows 1 and 4.

Visitors to this page in 2018: 5,099Visitors to this page in 2018:
14652

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"vaki" is a registered trademark
copyright in all puzzles is claimed and held by Tamaki Education and Sports Society Inc.
vaki ® puzzles can be played at vakipuzzles.com and puzzles.kiwi.nz
Books of vaki puzzles are available from amazon web-sites and from bookdepository.com (which offers
free delivery world-wide)